I have been corrected by my friend Christopher Witty, who knows his Montseny plants. I thought that this was a Bird’s Nest Orchid (Neottia nidus-avis), growing at the edge of a woodland of holm-oak (Quercus ilex) on the slope above the house, around 350m above sea-level. It is not. It is a Broomrape, a parasitic plant. Possibly a Bedstraw Broomrape, Orobanche caryophyllacea?
And this is a Pyramidal Orchid (Anacamptis pyramidalis), growing on a more open area of shrubs.
But, please, be my guest and correct me.